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Conodonts are comparatively rare in the Keisley Limestone, but the fauna includes a variety of forms, comprising 17 genera. Three of these genera, Keislognathus, Rosagnathus and Strachanognathus are new, and five new species are also described. The fauna is compared with others of a similar age, and the ranges and stratigraphical value of the conodont genera are considered.